The table contains prices from two companies, one on the east coast and one on the west coast, for specific fish types. Find a 90% confidence interval for the mean difference in wholesale price between the east coast and west coast suppliers. Round your answers to three decimal places, and use four decimal places for any interim calculations. You can use R to get the summary statistics, but you can also solve this problem by hand using skills from univariate summaries. Wholesale Prices of Fish in Dollars Fish East Coast 18.49 6 18.99 24.45 30.49 29.15 21.55 29.5 30.49 Cod Tilapia Farmed Salmon Organic Salmon Grouper Fillet Tuna Swordfish Sea Bass Striped Bass West Coast 19.49 6 23.99 31.45 28.49 36.15 22.55 36.5 33.49 % confidence, it can be said that the true mean difference in wholesale price between the and $ With east coast and west coast suppliers is between $

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The table lists wholesale prices of fish in dollars from two companies—one on the East Coast and one on the West Coast—for various fish types. The task is to find a 90% confidence interval for the mean difference in wholesale prices between these suppliers. You should round answers to three decimal places and use four decimal places for any interim calculations.

### Wholesale Prices of Fish in Dollars

| Fish           | East Coast | West Coast |
|----------------|------------|------------|
| Cod            | 18.49      | 19.49      |
| Tilapia        | 6.00       | 6.00       |
| Farmed Salmon  | 18.99      | 23.99      |
| Organic Salmon | 24.45      | 31.45      |
| Grouper Fillet | 30.49      | 28.49      |
| Tuna           | 29.15      | 36.15      |
| Swordfish      | 21.55      | 22.55      |
| Sea Bass       | 29.50      | 36.50      |
| Striped Bass   | 30.49      | 33.49      |

With a 90% confidence level, the task is to determine the true mean difference in wholesale prices between East Coast and West Coast suppliers, which lies between a specific dollar range.

### Explanation

- **Cod**: East Coast: $18.49, West Coast: $19.49
- **Tilapia**: East Coast: $6.00, West Coast: $6.00
- **Farmed Salmon**: East Coast: $18.99, West Coast: $23.99
- **Organic Salmon**: East Coast: $24.45, West Coast: $31.45
- **Grouper Fillet**: East Coast: $30.49, West Coast: $28.49
- **Tuna**: East Coast: $29.15, West Coast: $36.15
- **Swordfish**: East Coast: $21.55, West Coast: $22.55
- **Sea Bass**: East Coast: $29.50, West Coast: $36.50
- **Striped Bass**: East Coast: $30.49, West Coast: $33.49

The blank spaces indicate where students would calculate the confidence interval values
Transcribed Image Text:The table lists wholesale prices of fish in dollars from two companies—one on the East Coast and one on the West Coast—for various fish types. The task is to find a 90% confidence interval for the mean difference in wholesale prices between these suppliers. You should round answers to three decimal places and use four decimal places for any interim calculations. ### Wholesale Prices of Fish in Dollars | Fish | East Coast | West Coast | |----------------|------------|------------| | Cod | 18.49 | 19.49 | | Tilapia | 6.00 | 6.00 | | Farmed Salmon | 18.99 | 23.99 | | Organic Salmon | 24.45 | 31.45 | | Grouper Fillet | 30.49 | 28.49 | | Tuna | 29.15 | 36.15 | | Swordfish | 21.55 | 22.55 | | Sea Bass | 29.50 | 36.50 | | Striped Bass | 30.49 | 33.49 | With a 90% confidence level, the task is to determine the true mean difference in wholesale prices between East Coast and West Coast suppliers, which lies between a specific dollar range. ### Explanation - **Cod**: East Coast: $18.49, West Coast: $19.49 - **Tilapia**: East Coast: $6.00, West Coast: $6.00 - **Farmed Salmon**: East Coast: $18.99, West Coast: $23.99 - **Organic Salmon**: East Coast: $24.45, West Coast: $31.45 - **Grouper Fillet**: East Coast: $30.49, West Coast: $28.49 - **Tuna**: East Coast: $29.15, West Coast: $36.15 - **Swordfish**: East Coast: $21.55, West Coast: $22.55 - **Sea Bass**: East Coast: $29.50, West Coast: $36.50 - **Striped Bass**: East Coast: $30.49, West Coast: $33.49 The blank spaces indicate where students would calculate the confidence interval values
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